This medication is used to treat depression. It may help to improve your mood, appetite, and energy level as well as decrease anxiety and insomnia related to depression. Trazodone works by helping to restore the balance of a certain natural chemical (serotonin) in the brain. Do not share this medication with others. Psychiatric and/or medical checkups (and laboratory tests) should be done periodically to monitor your progress and check for side effects. Consult your doctor for more details. Have your blood pressure and pulse checked regularly while taking this medication. Discuss with your doctor how to monitor your own blood pressure and pulse.